21604209

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{8287}}^1$

素因数の和:8380

約数の個数: 16

約数和(自身を含む): 31825920

約数和(自身を除く): 10221711

約数列:

[1, 3, 11, 33, 79, 237, 869, 2607, 8287, 24861, 91157, 273471, 654673, 1964019, 7201403, 21604209]

約数ペア:

[(1, 21604209), (3, 7201403), (11, 1964019), (33, 654673), (79, 273471), (237, 91157), (869, 24861), (2607, 8287)]